Results 91 to 100 of about 50,611 (217)
A mechanical mode-stirred reverberation chamber with chaotic geometry [PDF]
arXiv, 2014 A previous research on multivariate approach to the calculation of reverberation chamber correlation matrices is used to calculate the number of independent positions in a mode-stirred reverberation chamber. Anomalies and counterintuitive behavior are observed in terms of number of correlated matrix elements with respect to increasing frequency.
arxiv
, 2014 An original experimental method for determining the empirical probability distribution function (PDF) of the quality factor (Q) of a mode-stirred reverberation chamber is presented.
Andries, Mihai I. +3 more
core +2 more sources
Design of Chaotic Cavities with Curved Wave Diffractors for Enhanced Low-Frequency Operation [PDF]
arXiv, 2014 Some numerical calculations are presented on the dependence of the average mode count and average mode density of electromagnetic cavities on their specific geometric design, based on the generalized Weyl law. The analysis focuses on a chaotic quasi-cubic cavity furnished with curved wave diffractors placed on its interior surface.
arxiv
K-factor Evaluation in a Hybrid Reverberation Chamber plus CATR OTA Testing Setup [PDF]
A. A. Ruiz, S. Hosseinzadegan, J. Kvarnstrand, K. Arvidsson and A.
A. Glazunov, "K-Factor Evaluation in a Hybrid Reverberation Chamber Plus CATR
OTA Testing Setup," 2024 18th EuCAP, Glasgow, United Kingdom, 2024, pp. 1-5This paper investigates achieving diverse K-factors using a Reverberation Chamber (RC) with a Compact Antenna Test Range (CATR) system. It explores six hybrid "RC plus CATR" configurations involving different excitations of the Rich Isotropic Multipath (RIMP) field and CATR-generated plane waves, with some setups including absorbers.
arxiv +1 more source
Total Radiated Power Measurements of a mmWave Phased Array in a Reverberation Chamber [PDF]
A. A. Ruiz, S. Hosseinzadegan, J. Kvarnstrand, K. Arvidsson and A.
A. Glazunov, "Total Radiated Power Measurements of a mmWave Phased Array in a
Reverberation Chamber," 2023 IEEE ISAP, Kuala Lumpur, Malaysia, 2023, pp. 1-2This paper explores the use of reverberation chambers for TRP measurements of beamformed radiation by phased arrays at mmWave frequencies. First, the received power was verified by the one-sample K-S GoF test to follow the exponential probability distribution. Different numbers of samples and stirrers' positions were considered.
arxiv +1 more source
A new measure for evaluating shielding performance of an equipment enclosure at frequencies above 1 GHz [PDF]
, 2007 The measure of shielding effectiveness (SE) and the related measurement techniques proposed by the current IEEE Standard 299 are only applicable for large screened enclosures having dimensions more than 2 m.
Cui, Yong
core
Long-term radiofrequency electromagnetic fields exposure attenuates cognitive dysfunction in 5×FAD mice by regulating microglial function. [PDF]
Neural Regen Res, 2023 Son Y +5 more
europepmc +1 more source